<webview>: Implement WebRequest API

chrome/browser/extensions/api/web_request/web_request_api.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 1267 matching lines @@
       IsGuestProcess(render_process_host_id);
   std::set<EventListener>& listeners = listeners_[profile][event_name];
   for (std::set<EventListener>::iterator it = listeners.begin();
        it != listeners.end(); ++it) {
     if (!it->ipc_sender.get()) {
       // The IPC sender has been deleted. This listener will be removed soon
       // via a call to RemoveEventListener. For now, just skip it.
       continue;
     }
 
-    if (is_guest && (it->target_process_id != render_process_host_id||
+    if (is_guest && (it->target_process_id != render_process_host_id ||
                      it->target_route_id != routing_id))
       continue;
 
     if (!it->filter.urls.is_empty() && !it->filter.urls.MatchesURL(url))
       continue;
     if (it->filter.tab_id != -1 && tab_id != it->filter.tab_id)
       continue;
     if (it->filter.window_id != -1 && window_id != it->filter.window_id)
       continue;
     if (!it->filter.types.empty() &&
         std::find(it->filter.types.begin(), it->filter.types.end(),
                   resource_type) == it->filter.types.end())
       continue;
 
-    if (!WebRequestPermissions::CanExtensionAccessURL(
+    if (!is_guest && !WebRequestPermissions::CanExtensionAccessURL(
             extension_info_map, it->extension_id, url, crosses_incognito, true))
       continue;
 
     bool blocking_listener =
         (it->extra_info_spec &
             (ExtraInfoSpec::BLOCKING | ExtraInfoSpec::ASYNC_BLOCKING)) != 0;
 
     // We do not want to notify extensions about XHR requests that are
     // triggered by themselves. This is a workaround to prevent deadlocks
     // in case of synchronous XHR requests that block the extension renderer
@@ skipping 504 matching lines @@
         ExtensionWebRequestEventRouter::ExtraInfoSpec::InitFromValue(
             *value, &extra_info_spec));
   }
 
   std::string event_name;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(3, &event_name));
 
   std::string sub_event_name;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(4, &sub_event_name));
 
+  int target_process_id = -1;
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(5, &target_process_id));
+
+  int target_route_id = -1;
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(6, &target_route_id));
+
   const Extension* extension =
       extension_info_map()->extensions().GetByID(extension_id());
   std::string extension_name = extension ? extension->name() : extension_id();
 
   // We check automatically whether the extension has the 'webRequest'
   // permission. For blocking calls we require the additional permission
   // 'webRequestBlocking'.
-  if ((extra_info_spec &
+  if ((!extension->is_app() && extra_info_spec &
           (ExtensionWebRequestEventRouter::ExtraInfoSpec::BLOCKING |
            ExtensionWebRequestEventRouter::ExtraInfoSpec::ASYNC_BLOCKING)) &&
        !extension->HasAPIPermission(
            extensions::APIPermission::kWebRequestBlocking)) {
     error_ = keys::kBlockingPermissionRequired;
     return false;
   }
 
   // We allow to subscribe to patterns that are broader than the host
   // permissions. E.g., we could subscribe to http://www.example.com/*
   // while having host permissions for http://www.example.com/foo/* and
   // http://www.example.com/bar/*.
   // For this reason we do only a coarse check here to warn the extension
   // developer if he does something obviously wrong.
-  if (extension->GetEffectiveHostPermissions().is_empty()) {
+  if (!extension->is_app() && extension->GetEffectiveHostPermissions().is_empty()) {
     error_ = keys::kHostPermissionsRequired;
     return false;
   }
 
   bool success =
       ExtensionWebRequestEventRouter::GetInstance()->AddEventListener(
           profile_id(), extension_id(), extension_name,
           event_name, sub_event_name, filter,
-          extra_info_spec, -1, -1, ipc_sender_weak());
+          extra_info_spec, target_process_id, target_route_id,
+          ipc_sender_weak());
   EXTENSION_FUNCTION_VALIDATE(success);
 
   helpers::ClearCacheOnNavigation();
 
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, base::Bind(
       &NotifyWebRequestAPIUsed,
       profile_id(), make_scoped_refptr(GetExtension())));
 
   return true;
 }
@@ skipping 159 matching lines @@
       } else if ((*it)->name().find("AdBlock") != std::string::npos) {
         adblock = true;
       } else {
         other = true;
       }
     }
   }
 
   host->Send(new ExtensionMsg_UsingWebRequestAPI(adblock, adblock_plus, other));
 }